CHEMICAL REACTION ENGINEERING QUIZ

Oil is hydrogenated using nickel catalyst in a __________ reactor.

Fixed bed

Slurry

Fluidised bed

Batch

TRUE ANSWER : ?
YOUR ANSWER : ?

What is the dispersion number for a plug flow reactor?

-1

1

?

TRUE ANSWER : ?
YOUR ANSWER : ?

Catalytic action in a catalytic chemical reaction follows from the ability of catalyst to change the

None of these

Heat of reaction

Activation energy

Equilibrium constant

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YOUR ANSWER : ?

Which of the following is not a chemical step in a fluid solid catalytic reaction?

Surface chemical reaction

None of these

Desorption

Adsorption

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YOUR ANSWER : ?

Specific rate constant for a second order reaction

Varies with temperature

Is independent of temperature

Both B and C

Depends on the nature of the reactants

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YOUR ANSWER : ?

In case of calcination of limestone, CaCO₃ CaO + CO₂, the addition of more of CaO will result in __________ in the concentration of CO₂.

Unpredictable from the data

Increase

No change

Decrease

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YOUR ANSWER : ?

In an ideal tubular-flow reactor

Mixing takes place in radial direction

There is a uniform velocity across the radius

All of these

There is no mixing in longitudinal direction

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is not a theory of homogeneous reaction?

Collision theory and activated complex theory

Chain reaction theory

None of these

Radiation hypothesis

TRUE ANSWER : ?
YOUR ANSWER : ?

A typical example of an exothermic reversible reaction conducted at high pressure in industry is

Polymerisation of ethylene

Reformation of methane

Methanol synthesis

Dehydration of ethanol

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YOUR ANSWER : ?

The value of steric factor 'P' in the equation k = PZeE/RT usually ranges from

None of these

L.0 to 10⁻⁸

0.1 to 0.9

L.l.to 10²

TRUE ANSWER : ?
YOUR ANSWER : ?

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